﻿<html>
<head>
    <title>The CSS _ Underscore Test</title>
    <style type="text/css">
        *{
            padding-left: 10px;
            font-size: 14pt;
            _color: green;
            
        }
    
        #_idTest1{
            background-color: red;
        }
        #_id_Test2{
            background-color: red;
        }
        #_id_Test_3{
            background-color: red;
        }
        #_idTest1, #_id_Test2, #_id_Test_3{
            border: solid 4px blue;
        }
        
        ._classTest1{
            background-color: red;
        }
        ._class_Test2{
            background-color: red;
        }
        ._class_Test_3{
            background-color: red;
        }
        ._classTest1, ._class_Test2, ._class_Test_3{
            border: solid 4px blue;
        }
        
        #idTest1{
            background-color: red;
        }
        _#idTest1{
            font-size: 18pt;
        }
        #id_Test2{
            background-color: red;
        }
        #id_Test_3{
            background-color: red;
        }
        #idTest1, #id_Test2, #id_Test_3{
            border: solid 4px blue;
        }
        
        .classTest1{
            background-color: red;
        }
        _.classTest1{
            font-size: 18pt;
        }
        .class_Test2{
            background-color: red;
        }
        .class_Test_3{
            background-color: red;
        }
        .classTest1, .class_Test2, .class_Test_3{
            border: solid 4px blue;
        }
        
    </style>
</head>
<body>

    <div id="_idTest1">_idTest1</div>
    <div id="_id_Test2">_id_Test2</div>
    <div id="_id_Test_3">_id_Test_3</div>
    
    <div class="_classTest1">_classTest1</div>
    <div class="_class_Test2">_class_Test2</div>
    <div class="_class_Test_3">_class_Test_3</div>
  
    <div id="idTest1">idTest1</div>
    <div id="id_Test2">id_Test2</div>
    <div id="id_Test_3">id_Test_3</div>
  
    <div class="classTest1">classTest1</div>
    <div class="class_Test2">class_Test2</div>
    <div class="class_Test_3">class_Test_3</div>

</body>